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μClinux
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<p>μClinux is a variation of the <a href="/facts/Linux_(kernel)/dlkduHuA">Linux kernel</a>, previously maintained as a <a href="/facts/Fork_(software_development)/D6khxhpr">fork</a>, that targets <a href="/facts/Microcontroller/MKrnAhnm">microcontrollers</a> without a <a href="/facts/Memory_management_unit/tJQtAQzI">memory management unit</a> (MMU). It was integrated into the <a href="/facts/Mainline_Linux/dlkduHuA">mainline kernel</a> as of 2.5.46; the project continues to develop patches and tools for microcontrollers. The homepage lists Linux kernel releases for 2.0, 2.4 and 2.6 (all of which are <a href="/facts/End-of-life_(product)/LaKyw5RU">end-of-life</a> in mainline). </p><p>The letters "μC" are for "microcontroller": the name is pronounced "you-see-Linux", rather than pronouncing the letter <a href="/facts/Mu_(letter)/j1MMkE2w">mu</a> as in <a href="/facts/Greek_language/pzDd6eIz">Greek</a>. </p>